Effects of Jasmonates on in vitro Tuberization in Several Potato Cultivars that Differ Greatly in Maturity

Koda, Yasunori; Kikuta, Yoneo

doi:10.1626/pps.4.66

Cited by 13 publications

(8 citation statements)

References 21 publications

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“…A favourable effect of JA on tuber growth after induction was also reported by Pelacho and Mingo-Castel (1991). Koda and Kikuta (2001) observed that JAinduced in vitro tuberization in potato was dependent on the maturing time of the cultivar; the later the maturing time of the cultivar, the lower the response. The relative higher JAresponsiveness of early cultivar is assumed to be due to the lower levels of endogenous GAs (Koda 1997;Koda and Kikuta 2001), which are known to antagonize the JA action (Jackson 1999;Castro et al 2000).…”

Section: Discussionsupporting

confidence: 66%

“…Koda and Kikuta (2001) observed that JAinduced in vitro tuberization in potato was dependent on the maturing time of the cultivar; the later the maturing time of the cultivar, the lower the response. The relative higher JAresponsiveness of early cultivar is assumed to be due to the lower levels of endogenous GAs (Koda 1997;Koda and Kikuta 2001), which are known to antagonize the JA action (Jackson 1999;Castro et al 2000). Since relatively high GA levels reduce or stop tuber growth, it seems highly plausible that jasmonates could only exert their favourable effect on tuber growth in early cultivars, because their endogenous GA levels are lower than that of late cultivars.…”

Section: Discussionmentioning

confidence: 98%

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Cytokinins antagonize the jasmonates action on the regulation of potato (Solanum tuberosum) tuber formation in vitro

Sarkar

Pandey

Sharma

2006

Plant Cell Tiss Organ Cult

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The effects of jasmonic acid (JA) and methyl jasmonate (MeJA) on potato (Solanum tuberosum L.) tuberization were studied in relation to cytokinins using single-node cuttings (SNCs) in vitro. In three potato cultivars differing in maturity levels, JA or MeJA (0.0, 2.5, 5.0, 7.5 and 10.0 lM) action was examined with N 6 -benzyladenine (BA: 0.0, 22.0 and 44.0 lM) under optimum tuber-inducing treatment with 80 g L -1 sucrose. Although jasmonates had a stimulatory role in root growth from SNCs, BA inhibited the root growth and antagonized the jasmonates action on root growth promotion. There was a strong inhibitory effect of BA on stoloniferous shoot growth, and in combination with jasmonates it could exert a much pronounced inhibitory effect. Jasmonates did not have any role in tuber induction in terms of tuber number and sourcesink coordination (harvest index), rather their effects were counteracted in the presence of 22.0 lM BA in early cultivar. However, they had a promoting effect on tuber growth after induction in early cultivar, possibly due to its lower levels of endogenous gibberellins.Cytokinins detrimentally affected the tuber growth, and antagonized the jasmonates action irrespective of the maturity levels of the cultivars. It could, however, increase the tuber dry matter concomitant with a higher accumulation of starch. The promoting effect of jasmonates on tuber dry matter and starch accumulation was apparent only in early cultivar. There were significant interactions between cytokinin and jasmonates for accumulation of reducing and total sugars in tubers. The results show that exogenous cytokinins antagonize the jasmonates action, and the correlated effects of these two growth hormones interact with the maturing time of the cultivar during potato tuber formation in vitro.

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Section: Discussionsupporting

confidence: 66%

Section: Discussionmentioning

confidence: 98%

Cytokinins antagonize the jasmonates action on the regulation of potato (Solanum tuberosum) tuber formation in vitro

Sarkar

Pandey

Sharma

2006

Plant Cell Tiss Organ Cult

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“…Some researchers considered that jasmonates and gibberellins (GA) were the important components of the signal transduction pathways in regulating potato plant morphogenesis and controlling tuber induction (Takahashi et al 1994, Abdala et al 2002. The results of Koda and Kikuta (2001) suggested that not only GA but also JA were the key factors determining potato maturity and either a higher level of GA or lower level of JA may predispose the cultivars to have a late-maturing habit (maturity). However, other researchers suggested that JA spraying did not induce tuberization in short-dayrequiring potato species kept in non-inducing conditions (Jackson and Willmitzer 1994), and different levels of JA itself did not control the tuberization (Ulloa et al 2002).…”

mentioning

confidence: 99%

Effect of jasmonic acid on in vitro explant growth and microtuberization in potato

Zhang¹,

Zhou²,

Li³

et al. 2006

Biologia plant.

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The shoot fresh mass, root length and root numbers of two potato (Solanum tuberosum L.) cultivars Favorita and Helanwuhua were increased significantly by the application of 0.2 -2 mg dm -3 jasmonic acid (JA) in the Murashige and Skoog medium. However, the growth of potato explants was inhibited by JA at high concentrations (20 -50 mg dm -3 ). Chlorophyll content in explant leaves decreased with an increase in the concentration of JA. In leaves treated with 0.2 mg dm -3 JA acid peroxidase activity increased, while in the leaves treated with more than 2 mg dm -3 JA peroxidase activity decreased. Under the dark, the microtuber numbers, fresh mass and percentage of big microtubers of two potato cultivars were not promoted by the application of 0.2 -50 mg dm -3 JA.

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“…However, extremely latematuring cultivar showed high tuberization in response to MJ. These results suggest that also jasmonates are the crucial factors determining the ripeness [Koda and Kikuta 2001].…”

Section: Figmentioning

confidence: 69%

Methyl Jasmonate – A Multifunctional Molecule Throughout the Whole Plant Life

Hanaka

Nurzyńska-Wierdak

2019

asphc

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Methyl jasmonate (MJ) is a widely occurring molecule. Since it is synthesized constitutively, its presence is substantial to plant normal growth and development. Moreover, its elevated concentration detected under abiotic and biotic stress conditions seems to be crucial to plant in reacting to adverse events and its ability to survive. Because of the sophisticated biochemical machinery inside the plant body, MJ, among other molecules, helps the plant to adopt to the surrounding environmental changes and is involved in its defense system.

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Effects of Jasmonates on in vitro Tuberization in Several Potato Cultivars that Differ Greatly in Maturity

Cited by 13 publications

References 21 publications

Cytokinins antagonize the jasmonates action on the regulation of potato (Solanum tuberosum) tuber formation in vitro

Cytokinins antagonize the jasmonates action on the regulation of potato (Solanum tuberosum) tuber formation in vitro

Effect of jasmonic acid on in vitro explant growth and microtuberization in potato

Methyl Jasmonate – A Multifunctional Molecule Throughout the Whole Plant Life

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